A prenuptial agreement is only valid if it is completed prior to marriage. After a couple is married, they may draw up a post-nuptial agreement. In the United States, prenuptial agreements are recognized in all fifty states and the District of Columbia.
Osmosis - the diffusion of water (across a membrane) Water will move in the direction where there is a high concentration of solute (and hence a lower concentration of water. A simple rule to remember is: Salt is a solute, when it is concentrated inside or outside the cell, it will draw the water in its direction.
Explanation: 1  Osmosis is the process in which a solvent moves from a solution of low concentration to a solution of higher concentration 2  . A gradient is followed for this movement and once the concentration of both the solutions(on either sides of the membrane) becomes equal the solvents stop flowing.